Los Angeles - Khloe Kardashian says her family are "counting down the minutes" until sister Kourtney gives birth.
Kourtney announced on Wednesday she and boyfriend Scott Disick were expecting their second child together - a sibling for 23-month-old Mason - and sister Khloe admits she can't wait to become an aunt again.
She said: "Masey is going to be a big brother! We are counting down the minutes until we get to meet the newest member of our family."
Khloe is confident Kourtney - who is nine weeks pregnant - will be able to handle having two young children.
'Such a blessing'
Writing on her blog, she said: "I can't wait to see her with a kid in each arm! She'll be a pro. LOL. And if this next baby is anything like Mason, then we will truly be the luckiest family in the world. (sic)"
And Khloe isn't the only member of the Kardashian family excited about the impending arrival.
Kim - who is still recovering from her split from husband Kris Humphries - wrote on her website: "I have some amazing news to share with you all! Kourtney and Scott are expecting their second child!!
"This is such a blessing and the whole family is beyond thrilled! I just know Mason will make the best big brother and I can't wait to meet my new little niece or nephew!
"Congratulations Kourtney and Scott. Xo (sic)"